Gas-mixer.



P. M. SNIDER.

`GAs MlxER. APPLICATION FILED FEB. IIIQIB.

1,279,771. I Patented Sept. 24,1918.

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UNITED sTATEs PATENT oEEIoE.

PERCY MILESSNIDER, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF T0 FRED'E.TALLMADGE, 0F DETROIT, MICHIGAN.

GAS-MIXER.

Patented Sept. 24, 1,918.

Continuation of application Serial N o. 122,347, led September 27,1916.- This application led February 11, 1918. Serial No. 216,517.

To all whom t may concern:

Be it known that I, PERCY MILES SNIDER, a citizen of the United States,and residing at Detroit, in the county of Wayne and State of Michigan,have invented a new and Improved Gas-Mixer, of which the following is aspecification.

This invention is embodied in a device which intimately mixes the gasesand air that pass from city street gas mains to the stoves, ranges,furnaces or heaters where they are to be burned, and its object is toproduce a mixer that will be simple and effective.

This invention consists of a nozzle adapted to give a whirling andintermixing movement to the gases that pass through it, which nozzle isintroduced into the conduit that conveys the gases to the place ofcombustion. It further consists in fitting a 'disk of line wire webbingacross the intake end of the nozzle to break up the streams of gasespassing to the nozzle.

This application is in part a continuation of my former application No.122,347, led September'27, 1916.

In the accompanying drawing, Figure 1 is an elevation of a gas meter,gas stove and the pipe connecting them. Fig. 2 is a longitudinal'section of a pipe union with my improved mixer in position. Fig. 3 is aside elevatiog and Figs. 4 and 5 the two end elevations of this mixer.Fig. 6 is a longitudinal section of a pipe with a slightly modified formof mixer in position;

Similar reference characters refer to like parts throughout the severalviews. I

Fig. 1 of the drawing shows conventionally a gas stove 1, a gas meter 2and a pipe 73" connecting them. It will be understood that the stoverepresents any desired mechanism wherein gas may be burned. A union 4 ofwell known construction is interposed between the gas measuring and gasconsuming devices. This union consists of the usual ends 5 and 6 screwedonto the ends of the pipe 3, and a nut 7 that connects the ends. Theadjacent faces of the ends 5 and 6 are flat and between them this novelgas mixing device is mounted.

As shown in the drawing, this device consists of a cylindrical body 9having a radial flange 10 at one end, the opposite end being tapered toconstitute a nozzle 11 and this nozzle being formed with substantiallyspiral internall grooves 12. A disk 14 of woven wire may be mountedwithin the cylindrical body 9. A washer 15 of rubber, leather or otherdesirable material may be employed to secure this mixing device inposition. When the mixer is to be positioned intermediate the ends of alength of pipe 17,*the flange 10 will be omitted, as shown in Fig. 6, inwhich case the body 9 of the mixer should snugly t the interior surfaceof the pipe in order to hold it in position.

Ordinary city gas is not a single permanent gas but a mixture of gasesand usually carries a considerable percentage of air. The probableaction of this mixing device is to give to these mixed gases a whirlingmotion, intimately mixing them so that they will be in perfect conditionto burn with the hottest possible flame. The screen 14 breaks up thesegases as they How through the mixer. The exact operation of this deviceis not fully understood, but it has been found by actual practice thatthe amount of gas required to heat equal quantities of water is muchless when this mixer is used than without it.

I claim:

1. In combination with a pipe for conducting gas to a burner, a gasmixer mounted in said pipe and comprising a cylindrical body throughwhich the gas Hows, the discharge end of the body being pipe, a gasmiyer mounted in said union and Substantially spiral channels on theinner comprising a cylindrical body through side of the tapering end tocause the gas which the gas flows and having an outpassing through themixer to revolve and be l0 Wardly extending radial flange at therethoroughly mixed, and a screen Within the ceiving end adapted to begripped between body to break up the stream of gas before two parts ofthe union, the opposite end of it reaches said spiral channels.

the body being tapered and formed with PERCY MILES SNIDER.

